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963d4d30 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | //_________________________________________________________________________ | |
17 | // This is a TTask that constructs SDigits out of Hits | |
18 | // A Summable Digits is the sum of all hits in a cell | |
19 | // A threshold is applied | |
20 | // | |
21 | //-- Author: Alla Maevskaia(INR) | |
22 | ////////////////////////////////////////////////////////////////////////////// | |
23 | ||
24 | // --- ROOT system --- | |
25 | #include "TTask.h" | |
26 | #include "TTree.h" | |
27 | #include "TSystem.h" | |
28 | #include "TFile.h" | |
29 | // --- Standard library --- | |
30 | ||
31 | // --- AliRoot header files --- | |
32 | ||
33 | #include "AliFMDdigit.h" | |
34 | #include "AliFMDhit.h" | |
35 | #include "AliFMD.h" | |
36 | #include "AliFMDv1.h" | |
37 | #include "AliFMDSDigitizer.h" | |
38 | #include "AliRun.h" | |
39 | #include "AliDetector.h" | |
40 | #include "AliMC.h" | |
41 | ||
37c55dc0 | 42 | #include "TFile.h" |
43 | #include "TTask.h" | |
44 | #include "TTree.h" | |
45 | #include "TSystem.h" | |
963d4d30 | 46 | #include "TROOT.h" |
47 | #include "TFolder.h" | |
48 | #include <stdlib.h> | |
49 | #include <iostream.h> | |
50 | #include <fstream.h> | |
51 | ||
52 | ClassImp(AliFMDSDigitizer) | |
53 | ||
963d4d30 | 54 | //____________________________________________________________________________ |
55 | AliFMDSDigitizer::AliFMDSDigitizer():TTask("AliFMDSDigitizer","") | |
56 | { | |
37c55dc0 | 57 | // ctor |
58 | fNevents = 0 ; | |
59 | fSDigits = 0 ; | |
60 | fHits = 0 ; | |
61 | ||
963d4d30 | 62 | } |
37c55dc0 | 63 | |
963d4d30 | 64 | //____________________________________________________________________________ |
37c55dc0 | 65 | AliFMDSDigitizer::AliFMDSDigitizer(char* HeaderFile,char *SdigitsFile ):TTask("AliFMDSDigitizer","") |
963d4d30 | 66 | { |
37c55dc0 | 67 | fNevents = 0 ; // Number of events to digitize, 0 means all evens in current file |
68 | // add Task to //root/Tasks folder | |
963d4d30 | 69 | TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ; |
70 | roottasks->Add(this) ; | |
963d4d30 | 71 | } |
72 | ||
73 | //____________________________________________________________________________ | |
74 | AliFMDSDigitizer::~AliFMDSDigitizer() | |
75 | { | |
76 | // dtor | |
77 | } | |
78 | ||
37c55dc0 | 79 | //--------------------------------------------------------------------- |
80 | void AliFMDSDigitizer::SetRingsSi1(Int_t ringsSi1) | |
81 | { | |
82 | fRingsSi1=ringsSi1; | |
83 | } | |
84 | void AliFMDSDigitizer::SetSectorsSi1(Int_t sectorsSi1) | |
85 | { | |
86 | fSectorsSi1=sectorsSi1; | |
87 | } | |
88 | void AliFMDSDigitizer::SetRingsSi2(Int_t ringsSi2) | |
89 | { | |
90 | fRingsSi2=ringsSi2; | |
91 | } | |
92 | void AliFMDSDigitizer::SetSectorsSi2(Int_t sectorsSi2) | |
93 | { | |
94 | fSectorsSi2=sectorsSi2; | |
95 | } | |
963d4d30 | 96 | |
97 | //____________________________________________________________________________ | |
98 | void AliFMDSDigitizer::Exec(Option_t *option) { | |
963d4d30 | 99 | |
963d4d30 | 100 | |
963d4d30 | 101 | |
37c55dc0 | 102 | |
103 | Int_t NumberOfRings[5]= | |
104 | {fRingsSi1,fRingsSi2,fRingsSi1,fRingsSi2,fRingsSi1}; | |
105 | Int_t NumberOfSectors[5]= | |
106 | {fSectorsSi1,fSectorsSi2,fSectorsSi1,fSectorsSi2,fSectorsSi1}; | |
107 | ||
108 | // Initialise Hit array | |
109 | fHits = new TClonesArray ("AliFMDhit", 1000); | |
110 | fSDigits = new TClonesArray ("AliFMDdigit", 1000); | |
111 | ||
112 | AliFMD *FMD = (AliFMD *) gAlice->GetDetector ("FMD"); | |
113 | ||
114 | if (fNevents == 0) | |
115 | fNevents = (Int_t) gAlice->TreeE ()->GetEntries (); | |
116 | ||
117 | for (Int_t ievent = 0; ievent < fNevents; ievent++) | |
118 | { | |
119 | gAlice->GetEvent (ievent); | |
120 | if (gAlice->TreeH () == 0) | |
121 | return; | |
122 | if (gAlice->TreeS () == 0) | |
123 | gAlice->MakeTree ("S"); | |
124 | ||
125 | ||
126 | ||
963d4d30 | 127 | |
37c55dc0 | 128 | //Make branches |
129 | char branchname[20]; | |
130 | sprintf (branchname, "%s", FMD->GetName ()); | |
131 | //Make branch for digits | |
132 | FMD->MakeBranch ("S"); | |
133 | ||
134 | //Now made SDigits from hits, for PHOS it is the same | |
135 | Int_t volume, sector, ring, charge; | |
136 | Float_t e; | |
137 | Float_t de[10][50][150]; | |
138 | Int_t ivol, isec, iring; | |
139 | Int_t hit, nbytes; | |
140 | TParticle *particle; | |
141 | AliFMDhit *fmdHit; | |
142 | TClonesArray *FMDhits = FMD->Hits (); | |
143 | ||
144 | // Event ------------------------- LOOP | |
145 | ||
146 | for (ivol = 0; ivol < 10; ivol++) | |
147 | for (isec = 0; isec < 50; isec++) | |
148 | for (iring = 0; iring < 150; iring++) | |
149 | de[ivol][isec][iring] = 0; | |
150 | ||
151 | if (FMD) | |
152 | { | |
153 | FMDhits = FMD->Hits (); | |
154 | TTree *TH = gAlice->TreeH (); | |
155 | Stat_t ntracks = TH->GetEntries (); | |
156 | for (Int_t track = 0; track < ntracks; track++) | |
157 | { | |
158 | gAlice->ResetHits (); | |
159 | nbytes += TH->GetEvent (track); | |
160 | particle = gAlice->Particle (track); | |
161 | Int_t nhits = FMDhits->GetEntriesFast (); | |
162 | ||
163 | for (hit = 0; hit < nhits; hit++) | |
164 | { | |
165 | fmdHit = (AliFMDhit *) FMDhits->UncheckedAt (hit); | |
166 | ||
167 | volume = fmdHit->Volume (); | |
168 | sector = fmdHit->NumberOfSector (); | |
169 | ring = fmdHit->NumberOfRing (); | |
170 | e = fmdHit->Edep (); | |
171 | de[volume][sector][ring] += e; | |
172 | } //hit loop | |
173 | } //track loop | |
174 | } //if FMD | |
175 | ||
176 | ||
177 | Int_t digit[5]; | |
178 | Float_t I = 1.664 * 0.04 * 2.33 / 22400; // = 0.69e-6; | |
179 | for (ivol = 1; ivol < 6; ivol++) | |
180 | { | |
181 | for (isec = 1; isec <= NumberOfSectors[ivol-1]; isec++) | |
182 | { | |
183 | for (iring = 1; iring <= NumberOfRings[ivol-1]; iring++) | |
184 | { | |
185 | digit[0] = ivol; | |
186 | digit[1] = isec; | |
187 | digit[2] = iring; | |
188 | charge = Int_t (de[ivol][isec][iring] / I); | |
189 | ||
190 | digit[3] = charge; | |
191 | //dinamic diapason from MIP(0.155MeV) to 30MIP(4.65MeV) | |
192 | //1024 ADC channels | |
193 | Float_t channelWidth = (22400 * 30) / 1024; | |
194 | ||
195 | digit[4] = Int_t (digit[3] / channelWidth); | |
196 | FMD->AddSDigit(digit); | |
197 | ||
198 | } // iring loop | |
199 | } //sector loop | |
200 | } // volume loop | |
201 | ||
202 | gAlice->TreeS()->Reset(); | |
203 | gAlice->TreeS()->Fill(); | |
204 | gAlice->TreeS()->Write(0,TObject::kOverwrite) ; | |
205 | } //event loop | |
206 | ||
963d4d30 | 207 | |
208 | } | |
37c55dc0 | 209 | |
963d4d30 | 210 | //__________________________________________________________________ |
211 | void AliFMDSDigitizer::SetSDigitsFile(char * file ){ | |
212 | if(!fSDigitsFile.IsNull()) | |
213 | cout << "Changing SDigits file from " <<(char *)fSDigitsFile.Data() << " to " << file << endl ; | |
214 | fSDigitsFile=file ; | |
215 | } | |
216 | //__________________________________________________________________ | |
37c55dc0 | 217 | void AliFMDSDigitizer::Print(Option_t* option)const |
218 | { | |
963d4d30 | 219 | cout << "------------------- "<< GetName() << " -------------" << endl ; |
220 | if(fSDigitsFile.IsNull()) | |
221 | cout << " Writing SDigitis to file galice.root "<< endl ; | |
222 | else | |
223 | cout << " Writing SDigitis to file " << (char*) fSDigitsFile.Data() << endl ; | |
224 | ||
225 | } |